X0306 4 2018-11-29 0 0001740332 RESIDEO TECHNOLOGIES, INC. REZI 0001566846 Nefkens Michael G 1985 DOUGLAS DRIVE NORTH GOLDEN VALLEY MN 55422 1 1 0 0 See Remarks Common Stock 2018-11-29 4 P 0 10000 20.46 A 10000 D The price reported in this column is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $20.03 to $20.90, inclusive. The Reporting Person undertakes to provide to Resideo Technologies, Inc., any security holder of Resideo Technologies, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. PRESIDENT AND CHIEF EXECUTIVE OFFICER /s/ Jacqueline W. Katzel, as Attorney-in-Fact for Michael G. Nefkens 2018-11-29